Discovered last year by amateur astronomers in Spain, 2012 DA14, a nearEarth asteroid with an estimated diameter of 150 feet (45m), will make its close approach to Earth this week. Slooh will cover its near-approach on Friday, February 15th, with several live shows on Slooh.com, free to the public, starting at 6 PM PST / 9 PM EST / 02:00 UTC (2/16) International times here: http://goo.gl/ythGd accompanied by realtime discussions with Slooh’s Paul Cox, astronomer and author Bob Berman, and Prescott Observatory manager, Matt Francis. Viewers can watch live on their PC or IOS/Android mobile device.
On February 15th, Asteroid 2012 DA14 will only be .09 lunar distances away, flying between the Earth and most major weather and television satellites, which orbit Earth at approximately 22,000 miles. According to experts, this is the closest known object of this size ever to pass Earth. Nonetheless, this extremely close visit by 2012 DA14 is hardly a surprise: There are over 9,000 known nearEarth objects currently orbiting our Solar System with thousands more lurking undiscovered.
It is a good thing that this asteroid will definitely miss hitting Earth on the 15th: The damage from such an impact would be equivalent to the release of about two megatons of energy, or hundreds of Hiroshimatype bombs. It would be roughly as damaging as the famous Tunguska event, which flattened trees for 50 miles in all directions over Siberia on June 30, 1908.
Slooh will track Asteroid 2012 DA14 from two professional observatory locations Canary Islands off the coast of Africa and Arizona in the United States.
“Being about half the size of a football field, this asteroid will be slightly too small to appear to the unaided eye,” says Bob Berman. “It’s a shame that, at seventh magnitude, it will not be seen by the public without optical aid, since it will dramatically cross the sky at the rate of about one moonwidth per second, or approximately the speed of the ISS (International Space Station). It would have been quite a sight. And although simple binoculars could theoretically see it, its rapid motion will make locating this asteroid a major challenge for all but a small coterie of dedicated, serious astronomers with good star charts and a clock providing the absolutely correct time.”
Berman adds, “I looked forward not just to Slooh’s live views, given the tricky tracking required for such a fastzooming celestial object, but to the freneticallypaced `movie’ that Slooh will create for display that day, showing it hurtling crazily against the background stars.”